package com.lytest.springcloud.service;


import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {

    public String paymentInfo_OK(Integer id){
        return "线程池："+ Thread.currentThread().getName()+" paymentInfo_OK,id: "+id+"\t"+"哈哈";
    }
    @HystrixCommand(fallbackMethod = "paymentInfo_TimeHeader",commandProperties = {
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value = "6000")
    })
    public String paymentInfo_TimeOut(Integer id){
//        int age = 10/0;
        try {
            TimeUnit.SECONDS.sleep(5);
        }catch (InterruptedException e){
            e.printStackTrace();
        }
        return "线程池："+ Thread.currentThread().getName()+" paymentInfo_TimeOut,id: "+id+"\t"+"耗时5秒钟";
    }

    public String paymentInfo_TimeHeader(Integer id){

        return "线程池："+ Thread.currentThread().getName()+" paymentInfo_TimeOut,id: "+id+"\t"+"8001超时/异常，请稍后再试！！";
    }

    // 服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties ={
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"), //是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),//失败率达到多少后跳闸

    } )
    public String paymentCircuitBreaker(@PathVariable("id") Integer id){
        if (id<0){
            throw new RuntimeException("*****id 不能为负数");
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName()+ "\t" +"调用成功，流水号：" + serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id){
        return "id 不能负数，请稍后再试。。。" + id;
    }
}
